You need to create some type of IDbConnection, such as a SqlConnection with a known connection string, in order to execute the queries. If you’re good at SQL, you can be sure you’re writing the most performant commands possible. But for the most part, the SQL you send to Dapper is ready to go and the queries get to the database much more quickly. ![]() Dapper does have some cool transformational features such as the ability to explode a list passed to a WHERE IN clause. It’s closer to “the metal” than a standard ORM, relieving the effort of interpreting queries such as LINQ to EF into SQL. Dapper in a Nutshellĭapper focuses on letting you exercise your SQL skills to construct queries and commands as you think they should be. Gravell and Stack and team member Nick Craver continue to actively manage the project at /StackExchange/dapper-dot-net. Five years later, Dapper is now widely used and open source. ![]() He then details why writing a custom ORM, Dapper, was the answer for optimizing data access on Stack Overflow. In 2011, Saffron wrote a blog post about the work he and Gravell had done, titled, “How I Learned to Stop Worrying and Write My Own ORM” ( aka.ms/Vqpql6), which explains the performance issues Stack was having at the time, stemming from its use of LINQ to SQL. According to the Stack Exchange About page, Stack Overflow had 5.7 billion page views in 2015. Stack Overflow is a seriously high-traffic site that’s destined to have performance concerns. Why Dapper?ĭapper has an interesting history, having spawned from a resource you might be extremely familiar with: Marc Gravell and Sam Saffron built Dapper while working at Stack Overflow, solving performance issues with the platform. Rather, I know enough to satisfy my curiosity for the time being, and hopefully spark your interest so you’ll dig even further. Keep in mind that I am in no way an expert. What finally piqued my interest enough to take some time out to crack it open recently was various developers reporting that they’ve created hybrid solutions with EF and Dapper, letting each ORM do what it’s best at within a single application.Īfter reading numerous articles and blog posts, chatting with developers and playing a bit with Dapper, I wanted to share my discoveries with you, especially with those who, like me, perhaps heard of Dapper, but don’t really know what it is or how it works-or why people love it. The micro-ORM I’ve heard mentioned most is Dapper. NET ORMs out there but a particular category, micro-ORMs, gets a lot of notice for great performance. You’ve probably noticed that I write a lot about Entity Framework, the Microsoft Object Relational Mapper (ORM) that’s been the prime. ![]() Embracing the same historical principles as our iconic trucker, The Farm expands into additional shapes to create fashion pieces that can survive in an untamed world and unleash the wild inside.Volume 31 Number 5 Dapper, Entity Framework and Hybrid Apps ![]() They are proud of their heritage, but it does not define who they are today. Often imitated, but never duplicated.Īlthough The Farm was started in 2003, their roots go back to 1895 on the cobblestone streets of Pittsburgh, PA. You always know what you are getting, time and time again.Įach trucker purchased from Goorin Bros., comes with a holographic sticker, ensuring the authenticity of your new hat. Fabrics, animals, colors, and playful words will always change, but our signature silhouette remains the same. Farm is always experimenting with what the trucker truly is.
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